Patents by Inventor Lawrence L. Hopf

Lawrence L. Hopf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

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    Patent number: D253855
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: January 1, 1980
    Inventor: Lawrence L. Hopf